学术论文

      一种新型的激光抽运原子磁力仪

      New-Style Magnetometer Based on Laser Pumped Rubidium Atoms

      摘要:
      依据磁光旋转原理研制了一种拥有自主知识产权的新型的激光抽运高灵敏度原子磁力仪.该原子磁力仪利用磁场中铷原子与光场的相互作用,极化铷原子在待测磁场中进行拉莫尔进动,利用铷原子磁光共振频率与外磁场之间的关系,通过高灵敏度低噪声弱磁检测技术实现磁场的准确测量.测试结果表明,该磁力仪灵敏度为1 pT/Hz1/2;测试过程中磁场波动范围小于0.4 nT.
      Abstract:
      A magnetometer based on nonlinear magneto-optical rotation with intellectual property has been constructed and tested.In this magnetometer, the laser interacts with the rubidium atoms in the magnetic field, and the Larmor precession causes an ac rotation of the polarization of a separate probe beam;the polarization rotation frequency provides a measure of the magnetic field.Test results show that its sensitivity reaches 1 pT/Hz1/2, the magnetic field fluctuate is less than 0.4 nT in the test course.
      Author: YANG Shi-yu MIAO Pei-xian LIAN Ji-qin WANG Jian-xiang TU Jian-hui YANG Wei CUI Jing-zhong
      作者单位: 兰州空间技术物理研究所,兰州 730000
      刊 名: 兵器装备工程学报 ISTIC
      年,卷(期): 2017, 38(5)
      分类号: TM936.1
      在线出版日期: 2017年7月4日